PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

J5260-06Extension,socket Wrench

The Stanley Works Dba Stanley Proto · NSN 5120-01-398-7673 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-398-7673 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-398-7673. Primary manufacturer part number: J5260-06.
Features
  • Extension,socket Wrench — FSC 5120
  • Features Provided: MANUAL TOOL
  • Material: STEEL OVERALL
  • Style Designator: RIGID
  • Nondefinitive Spec/std Data: 2 TYPE AND 2 CLASS
  • Drive Surface Size: 0.375 INCHES NOMINAL BOTH ENDS IN
  • Drive End Shape: SQUARE SECOND END EXTERNAL
  • Specification/standard Data: 0U583-SAE AS4283 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Applications
  • Applications requiring Steel Overall construction
General Description

The Extension,socket Wrench, cataloged under National Stock Number 5120-01-398-7673, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is The Stanley Works Dba Stanley Proto. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 14 commercial cross-references from 11 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5120-01-398-7673
Primary Part NumberJ5260-06
Item NameExtension,socket Wrench
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerThe Stanley Works Dba Stanley Proto
StatusCANCELLED
Features ProvidedMANUAL TOOL
MaterialSTEEL OVERALL
Style DesignatorRIGID
Nondefinitive Spec/std Data2 TYPE AND 2 CLASS
Drive Surface Size0.375 INCHES NOMINAL BOTH ENDS IN
Drive End ShapeSQUARE SECOND END EXTERNAL
Specification/standard Data0U583-SAE AS4283 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Drive End ShapeSQUARE FIRST END INTERNAL
Surface TreatmentCHROMIUM OVERALL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
1377-00-169-72004426-1 INTERCHANGEABLE
Thruster,cartridge Actuated
Quantic Industries, Inc. Dba Quantic-Holex
3433-00-200-1748J27 INTERCHANGEABLE
Torch,welding
Victor Equipment Co
6130-00-262-0424 INTERCHANGEABLE
Rectifier,electropl
4730-00-263-2733SAE J530 2-2-2 130424B INTERCHANGEABLE
Tee,pipe
Sae International Dba Sae International
5950-00-433-6562 INTERCHANGEABLE
Transformer,radio Frequency
5935-00-439-3769GC810TJ1JB4 INTERCHANGEABLE
Connector,plug,electrical
Northrop Grumman Systems Corporation
6610-00-479-067011923 INTERCHANGEABLE
Pivot,jewel Bushing
Aerosonic Llc
5136-00-580-7360T105A INTERCHANGEABLE
Tap,thread Cutting
Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
5950-00-648-581155454 INTERCHANGEABLE
Transformer,audio Frequency
Cae Usa Inc.
5340-00-701-7396SM-C-187248 INTERCHANGEABLE
Cover,access
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
Cross-Reference Index
Part NumberManufacturer
J5260-06 The Stanley Works Dba Stanley Proto (USA)
STP 5260-06 Kipper Tool Company Dba Kipper Management Inc (USA)
5260-06 The Stanley Works Dba Stanley Proto (USA)
11923 Apex Tool Group, Llc Dba Nicholson (USA)
AS4283 TY2CL2 General Services Administration Federal Supply Service (USA)
1AH75 W.w. Grainger, Inc. Div Government Sales Division (USA)
401-5429 Nimikkeistokeskus Ncb Finland (FIN)
00944261000 Sears, Roebuck and Co. Dba Sears Div Sears Commercial (USA)
11923 Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc. (USA)
AS4283 Society of Automotive Engineers Inc (USA)
AS4283 Sae International Dba Sae International (USA)
44261 Sears, Roebuck and Co. Dba Sears Div Sears Commercial (USA)
9-44261 Sears, Roebuck and Co. Dba Sears Div Sears Commercial (USA)
J27 Herbrand Tools Corp (CAN)
Related Parts
1377-00-169-7200INTERCHANGEABLE
THRUSTER,CARTRIDGE ACTUATED
4426-1
3433-00-200-1748INTERCHANGEABLE
TORCH,WELDING
J27
6130-00-262-0424INTERCHANGEABLE
RECTIFIER,ELECTROPL
4730-00-263-2733INTERCHANGEABLE
TEE,PIPE
SAE J530 2-2-2 130424B
5950-00-433-6562INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
5935-00-439-3769INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
GC810TJ1JB4
6610-00-479-0670INTERCHANGEABLE
PIVOT,JEWEL BUSHING
11923
5136-00-580-7360INTERCHANGEABLE
TAP,THREAD CUTTING
T105A
5950-00-648-5811INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
55454
5340-00-701-7396INTERCHANGEABLE
COVER,ACCESS
SM-C-187248
2805-00-740-2060INTERCHANGEABLE
CRANKSHAFT AUXILIAR
6125-00-981-0351INTERCHANGEABLE
MOTOR-GENERATOR

Frequently Asked Questions

What is NSN 5120-01-398-7673?

NSN 5120-01-398-7673 is a Extension,socket Wrench, manufactured by The Stanley Works Dba Stanley Proto, classified under FSC 5120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5120-01-398-7673?

NSN 5120-01-398-7673 has 14 cross-referenced part numbers: J5260-06 (The Stanley Works Dba Stanley Proto), STP 5260-06 (Kipper Tool Company Dba Kipper Management Inc), 5260-06 (The Stanley Works Dba Stanley Proto), 11923 (Apex Tool Group, Llc Dba Nicholson), AS4283 TY2CL2 (General Services Administration Federal Supply Service) and 9 more.

What NSN replaces 5120-01-398-7673?

There are 12 known substitutes for 5120-01-398-7673: 1377-00-169-7200, 3433-00-200-1748, 6130-00-262-0424 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of J5260-06?

Key specifications for J5260-06: Features Provided: MANUAL TOOL; Material: STEEL OVERALL; Style Designator: RIGID; Nondefinitive Spec/std Data: 2 TYPE AND 2 CLASS. 11 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-01-398-7673 still in active supply?

NSN 5120-01-398-7673 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com